package com.dvj.demo.rabbiitmq;

import com.rabbitmq.client.BuiltinExchangeType;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * Producer
 * RabbitMQ发送消息
 *
 * @author Dvj
 * @date 2021/6/30 17:53
 */
public class PubSubProducer {
    public static void main(String[] args) throws IOException, TimeoutException {
        // 1.创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();

        // 2.设置参数
        // ip 默认值localhost
        factory.setHost("localhost");
        // 端口 默认值5672
        factory.setPort(5672);
        // 虚拟机 默认值/
        factory.setVirtualHost("/dvj");
        // 用户名 默认值 guest
        factory.setUsername("dvj");
        // 密码 默认值 guest
        factory.setPassword("dvj");

        // 3.创建连接 Connection
        Connection connection = factory.newConnection();

        // 4.创建Channel
        Channel channel = connection.createChannel();

        // 5.创建交换机
        /*
        exchangeDeclare(exchangeDeclare(String exchange, BuiltinExchangeType type, boolean durable, boolean autoDelete, boolean internal, Map<String, Object> arguments))
        参数：
            1.exchange：交换机名称
            2.type：交换机类型
                DIRECT("direct"),定向
                FANOUT("fanout"),广播，发送消息到每一个与之绑定的队列
                TOPIC("topic"),通配符的方式
                HEADERS("headers");参数匹配
            3.durable：是否持久化
            4.autoDelete：是否自动删除
            5.internal：内部使用
            6.arguments：参数
         */
        String exchangeName = "test_fanout";
        channel.exchangeDeclare(exchangeName, BuiltinExchangeType.FANOUT, true, false, false, null);

        // 6.创建队列
        String queue1Name = "test_fanout_queue1";
        String queue2Name = "test_fanout_queue2";
        channel.queueDeclare(queue1Name, true, false, false, null);
        channel.queueDeclare(queue2Name, true, false, false, null);

        // 7.绑定队列和交换机
        /*
        queueBind(String queue, String exchange, String routingKey)
        参数：
            1.queue：队列名称
            2.exchange：交换机名称
            3.routingKey：路由键，绑定规则
                如果交换机的类型未fanout，routingKey设置未""
         */
        channel.queueBind(queue1Name, exchangeName, "");
        channel.queueBind(queue2Name, exchangeName, "");

        // 8.发送消息
        String body = "日志信息：张三调用了findAll方法...日志级别：info...";
        channel.basicPublish(exchangeName, "", null, body.getBytes());

        // 9.释放资源
        channel.close();
        connection.close();
    }
}
